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Black rectangular lithium-polymer laptop battery, three cells, 50Wh 11.25V

KingSener

KingSener SS03XL 50Wh 11.25V 3-cell laptop battery

SKU CH-H72S-ZRZX7 MPN SS03XL

A 50 Wh, 11.25 V lithium-polymer battery with three cells for compatible HP EliteBook and ZBook laptops

  • Battery typeLithium-Ion
  • Battery voltage rating11.55 V
  • Battery capacity4,330 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withSS03XL
  • 50 Wh capacity supports longer work sessions
  • 25 V lithium-polymer chemistry delivers stable power
  • Three-cell design keeps weight low
  • Direct replacement for multiple HP part numbers
  • Fits EliteBook 730 735 740 745 755 830 840 846 G5 and G6 plus ZBook 14u G5 G6

Compatible HP EliteBook and ZBook models

The KingSener SS03XL is a replacement lithium-polymer battery designed for HP EliteBook 730, 735, 740, 745, 755, 830, 840, 846 G5 and G6 series, plus ZBook 14U G5 and G6 and the MT44 Mobile Thin Client. It matches part numbers SS03XL, HSTNN-LB8G, HSTNN-IB8C, 932823-421, 932823-1C1, 933321-855, HSN-I12C, HSN-I13C-4, HSN-I13C-5, HSN-I16C, HSN-I17C-4 and HSN-I17C-5.

Three-cell 50 Wh pack at 11.25 V

The pack contains three cells rated at 50 Wh and 11.25 V, with a 4330 mAh capacity at 11.55 V. It fits the original battery bay without adapters or cable changes and restores the laptop’s ability to run untethered. No additional hardware or firmware updates are required for installation.

Sustained output from lithium-polymer chemistry

Lithium-polymer cells maintain a stable voltage curve during extended discharge, so the laptop receives consistent power through long work sessions. The three-cell layout limits peak current compared to larger packs, making it suitable for typical productivity loads rather than continuous high-draw scenarios.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $30.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand nameKingsener
Model nameSS03XL
HSTNN-LB8G
HSTNN-IB8C
932823-421
932823-1C1
933321-855
HSN-I12C
HSN-I13C-4
HSN-I13C-5
HSN-I16C
HSN-I17C-4
HSN-I17C-5
Part numberSS03XL
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.55 V
Battery capacity4,330 mAh
Compatibility
Compatible withSS03XL

Questions about this item

How long does the 50Wh capacity last under a sustained heavy workload?

The battery stores 50Wh at 11.25V; real runtime varies with the laptop's power consumption, screen brightness and active components.

Does the 3-cell Li-Polymer pack run hot or loud during all-day use?

Li-Polymer cells generate less heat than older chemistries and have no moving parts, so the pack stays silent and typically warm rather than hot.

Which HP laptop models accept the SS03XL part number?

Compatible EliteBook and ZBook G5/G6 models include 730, 735, 740, 745, 755, 830, 840, 846 and ZBook 14U, plus the MT44 Mobile Thin Client.

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